简便计算：99.99*22.22+33.33*33.34_数学解答

简便计算：99.99*22.22+33.33*33.34

人气：227 ℃　时间：2019-11-16 18:10:21

解答

99.99×22.22+33.33×33.34
原式=(33.33×3)×22.22+33.33×33.34
=33.33×66.66+33.33×33.34
=33.33×(66.66+33.34)
=33.33×100
=3333